[netCDF #LYS-656454]: undefined reference to nc functions

Hello,

It looks like there might be a runtime problem; try setting the LD_LIBRARY_PATH 
environmental variable to /usr/local/lib, e.g.

    $ export LD_LIBRARY_PATH=/usr/local/lib

This tells the linker where to find the shared libraries at runtime.  If this 
doesn't work, what is the output when you run nc-config --all ?

Thanks!

-Ward

>/ Hi!
> 
> I have some problems with netcdf library and i hope you can help me
> 
> I use Ubuntu 16.04. I am trying to run the sample in C to read data with
> netCDF program
> 
> https://www.unidata.ucar.edu/software/netcdf/examples/programs/
> 
> and i have the next error:
> 
> simple_xy_rd.c:(.text+0x2f): undefined reference to `nc_open'
> simple_xy_rd.c:(.text+0x4b): undefined reference to `nc_strerror'
> simple_xy_rd.c:(.text+0x80): undefined reference to `nc_inq_varid'
> simple_xy_rd.c:(.text+0x9c): undefined reference to `nc_strerror'
> simple_xy_rd.c:(.text+0xd4): undefined reference to `nc_get_var_int'
> simple_xy_rd.c:(.text+0xf0): undefined reference to `nc_strerror'
> simple_xy_rd.c:(.text+0x19e): undefined reference to `nc_close'
> simple_xy_rd.c:(.text+0x1ba): undefined reference to `nc_strerror'
> collect2: error: ld returned 1 exit status
> 
> I thought maybe he's not properly linking the library, so I tried the
> next line to see where the netcdf.h is :
> 
> nc-config --cflags
> > -I/usr/local/include
> 
> I tried to compile the file with the next code :
> 
> gcc -Wall -I/usr/local/include -c simple_xy_rd.c -o simple_xy_rd
> 
> It doesn't show any error but It creates an object that is not executable.
> 
> Before installing netcdf I installed the packages zlib and hdf5-1.8.10-patch1 
> as recommended. zlib pacakage did not present any problem. When I used "make" 
> it present the following message:
> Makefile:553: recipe for target 'h5tools_str.lo' failed
> make[2]: *** [ h5tools_str.lo ] Error 1
> make[2]: Leaving directory 
> '/home/gnaro/Descargas/hdf5-1.8.10-patch1/tools/lib'
> Makefile:497: recipe for target 'all-recursive' failed
> make[1]: *** [all-recursive] Error 1
> make[1]: Leaving directory '/home/ gnaro/Descargas/hdf5-1.8.10-patch1 /tools'
> Makefile:539: recipe for target 'all-recursive' failed
> make: *** [all-recursive] Error 1
> I thank you for any help you can give me
> 
> Best regards
> 
> Genaro Soriano
> 
> 


Ticket Details
===================
Ticket ID: LYS-656454
Department: Support netCDF
Priority: Normal
Status: Closed
===================
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